Breeding for bacterial wilt resistance in tomato
Date
6-1956
Degree
Bachelor of Science in Agriculture
Major Course
Major in Agronomy
College
College of Agriculture and Food Science (CAFS)
Adviser/Committee Chair
Thomas L. York
Abstract
Crosses between two native varieties and four foreign varieties were made in the greenhouse, using foreign varieties as the female parents. The hybrids together with the parents were tested in a disease-ridden field. Disease readings revealed 30 to 50 percent losses in the susceptible-parent lines considerable resistance in the hybrids, and outstanding resistance in the native parents. to distinguish accurately the various degrees of resistance, a follow-up experimental was launched involving back crosses to the Philippine lines which were artificially inoculated with diluted bacterial oozes. This test confirmed the findings of the field test which can form the basis of a hypothesis; The native varieties show definitely higher resistance than the foreign varieties and that resistance of a progeny is clearly intermediate between that of parents, suggesting a non-dominant or partially dominant poly factorial genetic basis of resistance.
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
Thesis
Recommended Citation
Claudio, Tomas L., "Breeding for bacterial wilt resistance in tomato" (1956). Undergraduate Theses. 7426.
https://www.ukdr.uplb.edu.ph/etd-undergrad/7426
Document Type
Thesis